HANDEDNESS. “Most shells are right handed and possess overlapping whorls that coil around a single axis. Spiral coiling also appears to be dictated by a set of ‘behavioural’ rules involving shell sculpture … Opisthostoma shells are ‘sinistroid’ due to a reversal in coiling direction in the last half-whorl … can possess two or three different coiling axes.”
https://lnkd.in/dNeQF-g
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022